Click the button that says ‘Insert files using Drive’ from directly in the compose box.

Click Send.

Kidding aside about the piracy, this is a pretty amazing addition to Gmail. While apps like Sparrow included similar integrations with Dropbox earlier this year, more people use Gmail. Sending home videos of my daughter to her grandparents just got a lot easier. There’s nothing worse than sending off a video from my phone only to have it be too large or long to send directly.

Hopefully we see something similar happen with iCloud in the near future. Until then, it’s all Gmail for me.